Any other browser is:
Slower
Not installed
Used by only a few and thus websites are not designed to look best on them unless it's a linux or non-m$ fanboy site.
I hope you're kidding. So it takes an extra 1 second to load up -- big deal. Once it's up and running, many (Mozilla, Firefox) are just as fast (or faster depending on your configuration) as Internet Explorer. The fact that is isn't already installed doesn't make it bad, just different than the norm. In my opinion, it is worth it to get a more secure and highly customizable (Themes, Extensions) browser.
As for the "used only by a few...yadda yadda...less support...yadda yadda" statement...well I hate to tell you, but many, MANY sites are made to look correct on both browsers. And they aren't always "linux or non-m$ fanboy sites" as you so gladly state. When you get a GOOD web designer who actually knows what they're doing, the site is coded properly and often to standards if possible (Yes, W3C standards, which I will expand upon more below).
It's just common sense, I use ie because it's already there, works better than any alternative and it simply isn't worth my time to install an alternative and maintain manual updates.
Yet somehow you don't complain about having to install "MS Hotfixes" for every damned hole in IE.
W3C standards are what the guys who wrote the w3c standards want you to think websites are based on. The truth is most web sites are built by amateurs and thus don't conform to any standard, other than the fact that they look nice in ie because that's the user's browser 9 times out of 10.
W3C is badly outdated anyway, it doesn't even include many of the new features that both ie and most alternative browsers support. Why? Beause making a webpage that's compatable with everyone requires it to be bland and not have anything cool on it (content aside, I'm referring to eye candy). Just realitively speaking of course, there are exceptions to the rule.
Even if many websites are not designed and built/coded to standards, that doesn't mean the standards are pointless and should be ignored. That just means that some people should be educated on the purpose of the standards and how to make sure your website conforms to them.
Here is an analogy for you -- For all intensive purposes, lets say I've just emigrated US. Technically then I'm an "amateur" in the laws of this country, but that doesn't mean they are pointless because there are so many people who don't know the laws are moving to the US. That means they just need to be educated on the laws.
Now as for your "badly outdated" statement -- I have to totally and utterly disagree here. XHTML is relatively new, and has been revised in the past 3 years (XHTML 1.0 [http://www.w3.org/TR/xhtml1/], or XHTML 1.1 [http://www.w3.org/TR/xhtml11/] which was updated/created 2001). It definetly uses many of the newer features available in the browsers -- and besides that, there haven't been many new revelations in "browsing technology" in the past few years, so what "new features" are we discussing here?
And as for pages that properly support many browsers needing to be "bland." That is definitely false. Go
here [CSS Zen Garden] and then tell me there is no cross-browser compatible "eye-candy."
I hate to say it, Howard, but everything you just said sounds to me likes it was coming from someone who doesn't quite know what they are talking about. I'm sure you'll have a comeback or retort to this whole write-up I just did, but I don't really care. I've done my research -- I know what I'm talking about.
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As for being on-topic:
I usually build my own custom version of MAME with all the hacks and such that I want (no warnings, skip_startup_frames, etc). IMHO, it gives a bit more flexibility over other custom builds because I can pick and choose what I want.